why x/f the turn? we have NFD, can't we just play x/c given correct implied or pot odds? Say x/c up to 1/2 pot or x/f? I think his range for betting the turn after calling the F is going to be at least TP.

oops, i somehow just didn't notice AT ALL that we had a draw to the nuts.
i think that most things still hold up though.

we are still in bad shape because 4-flushes have horrible implied odds, specially oop.
c/c a 1/2 bet also leaves us a bit behind correct pot odds, but it isn't a huge mistake if you think that he can bet for free showdown with less than very strong hands.

all that said, with our nutdraw i slightly prefer to make a small bet myself (1/2 or less) to just check/folding.
as played we are almost getting the needed 4:1 in a turn call, but we aren't actually priced in because he will be holding our outs pretty often.